Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 1 | /* pcu_l1_if.cpp |
| 2 | * |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 3 | * Copyright (C) 2012 Andreas Eversberg <jolly@eversberg.eu> |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 4 | * |
| 5 | * This program is free software; you can redistribute it and/or |
| 6 | * modify it under the terms of the GNU General Public License |
| 7 | * as published by the Free Software Foundation; either version 2 |
| 8 | * of the License, or (at your option) any later version. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License |
| 16 | * along with this program; if not, write to the Free Software |
| 17 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 18 | */ |
| 19 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 20 | #include <stdio.h> |
| 21 | #include <unistd.h> |
Pau Espin Pedrol | 32499b6 | 2019-12-09 13:55:12 +0100 | [diff] [blame] | 22 | #include <inttypes.h> |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 23 | #include <stdlib.h> |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 24 | #include <string.h> |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 25 | #include <errno.h> |
| 26 | #include <assert.h> |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 27 | #include <sys/socket.h> |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 28 | #include <sys/un.h> |
Andreas Eversberg | 81a12be | 2013-03-16 16:16:41 +0100 | [diff] [blame] | 29 | #include <arpa/inet.h> |
Pau Espin Pedrol | 754b093 | 2020-03-26 14:47:13 +0100 | [diff] [blame] | 30 | #include <ctype.h> |
Max | 1187a77 | 2018-01-26 13:31:42 +0100 | [diff] [blame] | 31 | |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 32 | extern "C" { |
| 33 | #include <osmocom/core/talloc.h> |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 34 | #include <osmocom/core/select.h> |
| 35 | #include <osmocom/core/msgb.h> |
Max | 528ff39 | 2016-02-22 11:42:33 +0100 | [diff] [blame] | 36 | #include <osmocom/core/gsmtap_util.h> |
| 37 | #include <osmocom/core/gsmtap.h> |
Max | 1187a77 | 2018-01-26 13:31:42 +0100 | [diff] [blame] | 38 | #include <osmocom/core/bitvec.h> |
Alexander Couzens | 290d903 | 2020-09-16 21:52:02 +0200 | [diff] [blame] | 39 | #include <osmocom/core/sockaddr_str.h> |
Max | 1187a77 | 2018-01-26 13:31:42 +0100 | [diff] [blame] | 40 | #include <osmocom/core/logging.h> |
| 41 | #include <osmocom/core/utils.h> |
Alexander Couzens | 5bece2a | 2020-10-12 02:27:22 +0200 | [diff] [blame] | 42 | #include <osmocom/gprs/gprs_ns2.h> |
Max | 1187a77 | 2018-01-26 13:31:42 +0100 | [diff] [blame] | 43 | #include <osmocom/gsm/l1sap.h> |
| 44 | #include <osmocom/gsm/protocol/gsm_04_08.h> |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 45 | } |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 46 | |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 47 | #include <gprs_rlcmac.h> |
| 48 | #include <pcu_l1_if.h> |
| 49 | #include <gprs_debug.h> |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 50 | #include <gprs_bssgp_pcu.h> |
Harald Welte | 68fc127 | 2016-11-16 22:48:33 +0100 | [diff] [blame] | 51 | #include <osmocom/pcu/pcuif_proto.h> |
Holger Hans Peter Freyther | 67ed34e | 2013-10-17 17:01:54 +0200 | [diff] [blame] | 52 | #include <bts.h> |
Max | 6dc90b8 | 2018-02-19 17:17:28 +0100 | [diff] [blame] | 53 | #include <pdch.h> |
Pau Espin Pedrol | bd9973a | 2020-09-22 15:57:37 +0200 | [diff] [blame] | 54 | #include <tbf_ul.h> |
| 55 | #include <tbf_dl.h> |
Pau Espin Pedrol | 2182e62 | 2021-01-14 16:48:38 +0100 | [diff] [blame] | 56 | #include <gprs_ms_storage.h> |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 57 | |
Andreas Eversberg | a23c7ee | 2012-12-18 10:47:28 +0100 | [diff] [blame] | 58 | // FIXME: move this, when changed from c++ to c. |
| 59 | extern "C" { |
Max | 58b6646 | 2016-05-13 10:34:15 +0200 | [diff] [blame] | 60 | void *l1if_open_pdch(uint8_t trx_no, uint32_t hlayer1, |
| 61 | struct gsmtap_inst *gsmtap); |
Andreas Eversberg | a23c7ee | 2012-12-18 10:47:28 +0100 | [diff] [blame] | 62 | int l1if_connect_pdch(void *obj, uint8_t ts); |
| 63 | int l1if_pdch_req(void *obj, uint8_t ts, int is_ptcch, uint32_t fn, |
| 64 | uint16_t arfcn, uint8_t block_nr, uint8_t *data, uint8_t len); |
| 65 | } |
| 66 | |
Andreas Eversberg | e266bd4 | 2012-07-13 14:00:21 +0200 | [diff] [blame] | 67 | extern void *tall_pcu_ctx; |
| 68 | |
Pau Espin Pedrol | d7c3265 | 2019-12-23 12:41:34 +0100 | [diff] [blame] | 69 | #define PAGING_GROUP_LEN 3 |
| 70 | |
| 71 | /* returns [0,999] on success, > 999 on error */ |
| 72 | uint16_t imsi2paging_group(const char* imsi) |
| 73 | { |
| 74 | uint16_t pgroup = 0; |
Vadim Yanitskiy | bd0b0b3 | 2020-01-16 00:25:48 +0700 | [diff] [blame] | 75 | size_t len; |
Pau Espin Pedrol | d7c3265 | 2019-12-23 12:41:34 +0100 | [diff] [blame] | 76 | |
Vadim Yanitskiy | bd0b0b3 | 2020-01-16 00:25:48 +0700 | [diff] [blame] | 77 | len = (imsi != NULL) ? strlen(imsi) : 0; |
| 78 | if (len < PAGING_GROUP_LEN) |
Pau Espin Pedrol | d7c3265 | 2019-12-23 12:41:34 +0100 | [diff] [blame] | 79 | return 0xFFFF; |
| 80 | imsi += len - PAGING_GROUP_LEN; |
| 81 | |
| 82 | while (*imsi != '\0') { |
| 83 | if (!isdigit(*imsi)) |
| 84 | return 0xFFFF; |
| 85 | pgroup *= 10; |
| 86 | pgroup += *imsi - '0'; |
| 87 | imsi++; |
| 88 | } |
| 89 | return pgroup; |
| 90 | } |
| 91 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 92 | /* |
| 93 | * PCU messages |
| 94 | */ |
Ivan Kluchnikov | e3a0596 | 2012-03-18 15:48:51 +0400 | [diff] [blame] | 95 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 96 | struct msgb *pcu_msgb_alloc(uint8_t msg_type, uint8_t bts_nr) |
| 97 | { |
| 98 | struct msgb *msg; |
| 99 | struct gsm_pcu_if *pcu_prim; |
| 100 | |
| 101 | msg = msgb_alloc(sizeof(struct gsm_pcu_if), "pcu_sock_tx"); |
| 102 | if (!msg) |
| 103 | return NULL; |
| 104 | msgb_put(msg, sizeof(struct gsm_pcu_if)); |
| 105 | pcu_prim = (struct gsm_pcu_if *) msg->data; |
| 106 | pcu_prim->msg_type = msg_type; |
| 107 | pcu_prim->bts_nr = bts_nr; |
Ivan Kluchnikov | e3a0596 | 2012-03-18 15:48:51 +0400 | [diff] [blame] | 108 | |
| 109 | return msg; |
| 110 | } |
| 111 | |
Max | 0a8fae8 | 2017-03-08 18:53:30 +0100 | [diff] [blame] | 112 | const struct value_string gsm_pcu_if_text_type_names[] = { |
| 113 | OSMO_VALUE_STRING(PCU_VERSION), |
| 114 | OSMO_VALUE_STRING(PCU_OML_ALERT), |
| 115 | { 0, NULL } |
| 116 | }; |
| 117 | |
| 118 | int pcu_tx_txt_ind(enum gsm_pcu_if_text_type t, const char *fmt, ...) |
| 119 | { |
| 120 | struct gsm_pcu_if *pcu_prim; |
| 121 | struct gsm_pcu_if_txt_ind *txt; |
| 122 | va_list ap; |
| 123 | char *rep; |
| 124 | struct msgb *msg = pcu_msgb_alloc(PCU_IF_MSG_TXT_IND, 0); |
| 125 | if (!msg) |
| 126 | return -ENOMEM; |
| 127 | |
| 128 | pcu_prim = (struct gsm_pcu_if *) msg->data; |
| 129 | txt = &pcu_prim->u.txt_ind; |
| 130 | txt->type = t; |
| 131 | |
| 132 | va_start(ap, fmt); |
| 133 | rep = talloc_vasprintf(tall_pcu_ctx, fmt, ap); |
| 134 | va_end(ap); |
| 135 | |
| 136 | if (!rep) |
| 137 | return -ENOMEM; |
| 138 | |
| 139 | osmo_strlcpy(txt->text, rep, TXT_MAX_LEN); |
| 140 | talloc_free(rep); |
| 141 | |
| 142 | LOGP(DL1IF, LOGL_INFO, "Sending %s TXT as %s to BTS\n", txt->text, |
| 143 | get_value_string(gsm_pcu_if_text_type_names, t)); |
| 144 | |
| 145 | return pcu_sock_send(msg); |
| 146 | } |
| 147 | |
Pau Espin Pedrol | d1049dc | 2021-01-18 17:14:14 +0100 | [diff] [blame] | 148 | static int pcu_tx_act_req(struct gprs_rlcmac_bts *bts, uint8_t trx, uint8_t ts, uint8_t activate) |
Ivan Kluchnikov | 4277f0c | 2012-04-12 14:24:35 +0400 | [diff] [blame] | 149 | { |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 150 | struct msgb *msg; |
| 151 | struct gsm_pcu_if *pcu_prim; |
| 152 | struct gsm_pcu_if_act_req *act_req; |
| 153 | |
| 154 | LOGP(DL1IF, LOGL_INFO, "Sending %s request: trx=%d ts=%d\n", |
| 155 | (activate) ? "activate" : "deactivate", trx, ts); |
| 156 | |
Pau Espin Pedrol | d1049dc | 2021-01-18 17:14:14 +0100 | [diff] [blame] | 157 | msg = pcu_msgb_alloc(PCU_IF_MSG_ACT_REQ, bts->nr); |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 158 | if (!msg) |
| 159 | return -ENOMEM; |
| 160 | pcu_prim = (struct gsm_pcu_if *) msg->data; |
| 161 | act_req = &pcu_prim->u.act_req; |
| 162 | act_req->activate = activate; |
| 163 | act_req->trx_nr = trx; |
| 164 | act_req->ts_nr = ts; |
| 165 | |
| 166 | return pcu_sock_send(msg); |
| 167 | } |
| 168 | |
Pau Espin Pedrol | d1049dc | 2021-01-18 17:14:14 +0100 | [diff] [blame] | 169 | static int pcu_tx_data_req(struct gprs_rlcmac_bts *bts, uint8_t trx, uint8_t ts, uint8_t sapi, |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 170 | uint16_t arfcn, uint32_t fn, uint8_t block_nr, uint8_t *data, |
| 171 | uint8_t len) |
| 172 | { |
| 173 | struct msgb *msg; |
| 174 | struct gsm_pcu_if *pcu_prim; |
| 175 | struct gsm_pcu_if_data *data_req; |
Pau Espin Pedrol | d1049dc | 2021-01-18 17:14:14 +0100 | [diff] [blame] | 176 | int current_fn = bts_current_frame_number(bts); |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 177 | |
| 178 | LOGP(DL1IF, LOGL_DEBUG, "Sending data request: trx=%d ts=%d sapi=%d " |
Philipp Maier | 7e8e397 | 2018-04-10 13:31:45 +0200 | [diff] [blame] | 179 | "arfcn=%d fn=%d cur_fn=%d block=%d data=%s\n", trx, ts, sapi, arfcn, fn, current_fn, |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 180 | block_nr, osmo_hexdump(data, len)); |
| 181 | |
Pau Espin Pedrol | d1049dc | 2021-01-18 17:14:14 +0100 | [diff] [blame] | 182 | msg = pcu_msgb_alloc(PCU_IF_MSG_DATA_REQ, bts->nr); |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 183 | if (!msg) |
| 184 | return -ENOMEM; |
| 185 | pcu_prim = (struct gsm_pcu_if *) msg->data; |
| 186 | data_req = &pcu_prim->u.data_req; |
| 187 | |
| 188 | data_req->sapi = sapi; |
| 189 | data_req->fn = fn; |
| 190 | data_req->arfcn = arfcn; |
| 191 | data_req->trx_nr = trx; |
| 192 | data_req->ts_nr = ts; |
| 193 | data_req->block_nr = block_nr; |
| 194 | memcpy(data_req->data, data, len); |
| 195 | data_req->len = len; |
| 196 | |
| 197 | return pcu_sock_send(msg); |
| 198 | } |
| 199 | |
Pau Espin Pedrol | d1049dc | 2021-01-18 17:14:14 +0100 | [diff] [blame] | 200 | void pcu_l1if_tx_pdtch(msgb *msg, struct gprs_rlcmac_bts *bts, uint8_t trx, uint8_t ts, uint16_t arfcn, |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 201 | uint32_t fn, uint8_t block_nr) |
| 202 | { |
Max | b216c6b | 2017-09-01 11:00:39 +0200 | [diff] [blame] | 203 | #ifdef ENABLE_DIRECT_PHY |
Max | 528ff39 | 2016-02-22 11:42:33 +0100 | [diff] [blame] | 204 | if (bts->trx[trx].fl1h) { |
Andreas Eversberg | a23c7ee | 2012-12-18 10:47:28 +0100 | [diff] [blame] | 205 | l1if_pdch_req(bts->trx[trx].fl1h, ts, 0, fn, arfcn, block_nr, |
| 206 | msg->data, msg->len); |
Max | 528ff39 | 2016-02-22 11:42:33 +0100 | [diff] [blame] | 207 | msgb_free(msg); |
| 208 | return; |
| 209 | } |
Andreas Eversberg | a23c7ee | 2012-12-18 10:47:28 +0100 | [diff] [blame] | 210 | #endif |
Pau Espin Pedrol | d1049dc | 2021-01-18 17:14:14 +0100 | [diff] [blame] | 211 | pcu_tx_data_req(bts, trx, ts, PCU_IF_SAPI_PDTCH, arfcn, fn, block_nr, |
Andreas Eversberg | a23c7ee | 2012-12-18 10:47:28 +0100 | [diff] [blame] | 212 | msg->data, msg->len); |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 213 | msgb_free(msg); |
Ivan Kluchnikov | 4277f0c | 2012-04-12 14:24:35 +0400 | [diff] [blame] | 214 | } |
| 215 | |
Pau Espin Pedrol | ac3fd12 | 2021-01-13 18:54:38 +0100 | [diff] [blame] | 216 | void pcu_l1if_tx_ptcch(struct gprs_rlcmac_bts *bts, |
| 217 | uint8_t trx, uint8_t ts, uint16_t arfcn, |
Vadim Yanitskiy | 78f5861 | 2019-10-05 22:22:08 +0700 | [diff] [blame] | 218 | uint32_t fn, uint8_t block_nr, |
| 219 | uint8_t *data, size_t data_len) |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 220 | { |
Pau Espin Pedrol | ac3fd12 | 2021-01-13 18:54:38 +0100 | [diff] [blame] | 221 | if (the_pcu->gsmtap_categ_mask & (1 << PCU_GSMTAP_C_DL_PTCCH)) |
| 222 | gsmtap_send(the_pcu->gsmtap, arfcn, ts, GSMTAP_CHANNEL_PTCCH, 0, fn, 0, 0, data, data_len); |
Max | cad867e | 2016-04-21 14:35:55 +0200 | [diff] [blame] | 223 | #ifdef ENABLE_DIRECT_PHY |
Max | 528ff39 | 2016-02-22 11:42:33 +0100 | [diff] [blame] | 224 | if (bts->trx[trx].fl1h) { |
Vadim Yanitskiy | 78f5861 | 2019-10-05 22:22:08 +0700 | [diff] [blame] | 225 | l1if_pdch_req(bts->trx[trx].fl1h, ts, 1, fn, arfcn, block_nr, data, data_len); |
Max | 528ff39 | 2016-02-22 11:42:33 +0100 | [diff] [blame] | 226 | return; |
| 227 | } |
Andreas Eversberg | a23c7ee | 2012-12-18 10:47:28 +0100 | [diff] [blame] | 228 | #endif |
Pau Espin Pedrol | d1049dc | 2021-01-18 17:14:14 +0100 | [diff] [blame] | 229 | pcu_tx_data_req(bts, trx, ts, PCU_IF_SAPI_PTCCH, arfcn, fn, block_nr, data, data_len); |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 230 | } |
| 231 | |
Pau Espin Pedrol | d1049dc | 2021-01-18 17:14:14 +0100 | [diff] [blame] | 232 | void pcu_l1if_tx_agch(struct gprs_rlcmac_bts *bts, bitvec * block, int plen) |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 233 | { |
Pau Espin Pedrol | d752d7c | 2019-10-07 20:56:48 +0200 | [diff] [blame] | 234 | uint8_t data[GSM_MACBLOCK_LEN]; /* prefix PLEN */ |
| 235 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 236 | /* FIXME: why does OpenBTS has no PLEN and no fill in message? */ |
| 237 | bitvec_pack(block, data + 1); |
| 238 | data[0] = (plen << 2) | 0x01; |
Pau Espin Pedrol | 5854370 | 2019-09-30 19:07:16 +0200 | [diff] [blame] | 239 | |
Pau Espin Pedrol | ac3fd12 | 2021-01-13 18:54:38 +0100 | [diff] [blame] | 240 | if (the_pcu->gsmtap_categ_mask & (1 << PCU_GSMTAP_C_DL_AGCH)) |
| 241 | gsmtap_send(the_pcu->gsmtap, 0, 0, GSMTAP_CHANNEL_AGCH, 0, 0, 0, 0, data, GSM_MACBLOCK_LEN); |
Pau Espin Pedrol | 5854370 | 2019-09-30 19:07:16 +0200 | [diff] [blame] | 242 | |
Pau Espin Pedrol | d1049dc | 2021-01-18 17:14:14 +0100 | [diff] [blame] | 243 | pcu_tx_data_req(bts, 0, 0, PCU_IF_SAPI_AGCH, 0, 0, 0, data, GSM_MACBLOCK_LEN); |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 244 | } |
| 245 | |
Pau Espin Pedrol | d1049dc | 2021-01-18 17:14:14 +0100 | [diff] [blame] | 246 | void pcu_l1if_tx_pch(struct gprs_rlcmac_bts *bts, bitvec * block, int plen, uint16_t pgroup) |
Ivan Kluchnikov | c7e7f68 | 2012-06-29 22:53:15 +0400 | [diff] [blame] | 247 | { |
Pau Espin Pedrol | 8dc09e7 | 2019-10-07 20:56:02 +0200 | [diff] [blame] | 248 | uint8_t data[PAGING_GROUP_LEN + GSM_MACBLOCK_LEN]; |
Pau Espin Pedrol | d7c3265 | 2019-12-23 12:41:34 +0100 | [diff] [blame] | 249 | int i; |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 250 | |
Pau Espin Pedrol | 8dc09e7 | 2019-10-07 20:56:02 +0200 | [diff] [blame] | 251 | /* prepend paging group */ |
Pau Espin Pedrol | d7c3265 | 2019-12-23 12:41:34 +0100 | [diff] [blame] | 252 | for (i = 0; i < PAGING_GROUP_LEN; i++) { |
| 253 | data[PAGING_GROUP_LEN - 1 - i] = '0' + (char)(pgroup % 10); |
| 254 | pgroup = pgroup / 10; |
| 255 | } |
| 256 | OSMO_ASSERT(pgroup == 0); |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 257 | |
Pau Espin Pedrol | 8dc09e7 | 2019-10-07 20:56:02 +0200 | [diff] [blame] | 258 | /* block provided by upper layer comes without first byte (plen), |
| 259 | * prepend it manually: |
| 260 | */ |
| 261 | OSMO_ASSERT(sizeof(data) >= PAGING_GROUP_LEN + 1 + block->data_len); |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 262 | data[3] = (plen << 2) | 0x01; |
Pau Espin Pedrol | 8dc09e7 | 2019-10-07 20:56:02 +0200 | [diff] [blame] | 263 | bitvec_pack(block, data + PAGING_GROUP_LEN + 1); |
Pau Espin Pedrol | 5854370 | 2019-09-30 19:07:16 +0200 | [diff] [blame] | 264 | |
Pau Espin Pedrol | ac3fd12 | 2021-01-13 18:54:38 +0100 | [diff] [blame] | 265 | if (the_pcu->gsmtap_categ_mask & (1 << PCU_GSMTAP_C_DL_PCH)) |
| 266 | gsmtap_send(the_pcu->gsmtap, 0, 0, GSMTAP_CHANNEL_PCH, 0, 0, 0, 0, data + 3, GSM_MACBLOCK_LEN); |
Pau Espin Pedrol | 5854370 | 2019-09-30 19:07:16 +0200 | [diff] [blame] | 267 | |
Pau Espin Pedrol | d1049dc | 2021-01-18 17:14:14 +0100 | [diff] [blame] | 268 | pcu_tx_data_req(bts, 0, 0, PCU_IF_SAPI_PCH, 0, 0, 0, data, PAGING_GROUP_LEN + GSM_MACBLOCK_LEN); |
Ivan Kluchnikov | c7e7f68 | 2012-06-29 22:53:15 +0400 | [diff] [blame] | 269 | } |
| 270 | |
Pau Espin Pedrol | d1049dc | 2021-01-18 17:14:14 +0100 | [diff] [blame] | 271 | void pcu_rx_block_time(struct gprs_rlcmac_bts *bts, uint16_t arfcn, uint32_t fn, uint8_t ts_no) |
Jacob Erlbeck | af75ce8 | 2015-08-26 13:22:28 +0200 | [diff] [blame] | 272 | { |
Pau Espin Pedrol | d1049dc | 2021-01-18 17:14:14 +0100 | [diff] [blame] | 273 | bts_set_current_block_frame_number(bts, fn, 0); |
Jacob Erlbeck | af75ce8 | 2015-08-26 13:22:28 +0200 | [diff] [blame] | 274 | } |
| 275 | |
Pau Espin Pedrol | d1049dc | 2021-01-18 17:14:14 +0100 | [diff] [blame] | 276 | void pcu_rx_ra_time(struct gprs_rlcmac_bts *bts, uint16_t arfcn, uint32_t fn, uint8_t ts_no) |
Jacob Erlbeck | af75ce8 | 2015-08-26 13:22:28 +0200 | [diff] [blame] | 277 | { |
| 278 | /* access bursts may arrive some bursts earlier */ |
Pau Espin Pedrol | d1049dc | 2021-01-18 17:14:14 +0100 | [diff] [blame] | 279 | bts_set_current_block_frame_number(bts, fn, 5); |
Jacob Erlbeck | af75ce8 | 2015-08-26 13:22:28 +0200 | [diff] [blame] | 280 | } |
| 281 | |
Pau Espin Pedrol | d1049dc | 2021-01-18 17:14:14 +0100 | [diff] [blame] | 282 | int pcu_rx_data_ind_pdtch(struct gprs_rlcmac_bts *bts, uint8_t trx_no, uint8_t ts_no, uint8_t *data, |
Jacob Erlbeck | 20f6fd1 | 2015-06-08 11:05:45 +0200 | [diff] [blame] | 283 | uint8_t len, uint32_t fn, struct pcu_l1_meas *meas) |
Andreas Eversberg | a23c7ee | 2012-12-18 10:47:28 +0100 | [diff] [blame] | 284 | { |
Holger Hans Peter Freyther | 9ae367f | 2013-10-26 16:42:38 +0200 | [diff] [blame] | 285 | struct gprs_rlcmac_pdch *pdch; |
| 286 | |
Pau Espin Pedrol | d1049dc | 2021-01-18 17:14:14 +0100 | [diff] [blame] | 287 | pdch = &bts->trx[trx_no].pdch[ts_no]; |
Jacob Erlbeck | 20f6fd1 | 2015-06-08 11:05:45 +0200 | [diff] [blame] | 288 | return pdch->rcv_block(data, len, fn, meas); |
Andreas Eversberg | a23c7ee | 2012-12-18 10:47:28 +0100 | [diff] [blame] | 289 | } |
| 290 | |
Pau Espin Pedrol | d1049dc | 2021-01-18 17:14:14 +0100 | [diff] [blame] | 291 | static int pcu_rx_data_ind_bcch(struct gprs_rlcmac_bts *bts, uint8_t *data, uint8_t len) |
Max | 84bf0fa | 2017-09-01 11:02:40 +0200 | [diff] [blame] | 292 | { |
Max | 84bf0fa | 2017-09-01 11:02:40 +0200 | [diff] [blame] | 293 | if (len == 0) { |
| 294 | bts->si13_is_set = false; |
| 295 | LOGP(DL1IF, LOGL_INFO, "Received PCU data indication with empty SI13: cache cleaned\n"); |
| 296 | return 0; |
| 297 | } |
| 298 | |
| 299 | if (len != GSM_MACBLOCK_LEN) { |
| 300 | LOGP(DL1IF, LOGL_ERROR, "Received PCU data indication with SI13 with unexpected length %u\n", len); |
| 301 | return -EINVAL; |
| 302 | } |
| 303 | |
| 304 | memcpy(bts->si13, data, GSM_MACBLOCK_LEN); |
| 305 | bts->si13_is_set = true; |
| 306 | |
| 307 | return 0; |
| 308 | } |
| 309 | |
Pau Espin Pedrol | d1049dc | 2021-01-18 17:14:14 +0100 | [diff] [blame] | 310 | static int pcu_rx_data_ind(struct gprs_rlcmac_bts *bts, struct gsm_pcu_if_data *data_ind) |
Ivan Kluchnikov | e3a0596 | 2012-03-18 15:48:51 +0400 | [diff] [blame] | 311 | { |
Max | 528ff39 | 2016-02-22 11:42:33 +0100 | [diff] [blame] | 312 | int rc; |
Pau Espin Pedrol | d1049dc | 2021-01-18 17:14:14 +0100 | [diff] [blame] | 313 | int current_fn = bts_current_frame_number(bts); |
Pau Espin Pedrol | da971ee | 2020-12-16 15:59:45 +0100 | [diff] [blame] | 314 | struct pcu_l1_meas meas = {0}; |
Pau Espin Pedrol | 72e3956 | 2020-06-30 17:57:42 +0200 | [diff] [blame] | 315 | uint8_t gsmtap_chantype; |
Max | b216c6b | 2017-09-01 11:00:39 +0200 | [diff] [blame] | 316 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 317 | LOGP(DL1IF, LOGL_DEBUG, "Data indication received: sapi=%d arfcn=%d " |
Philipp Maier | 7e8e397 | 2018-04-10 13:31:45 +0200 | [diff] [blame] | 318 | "fn=%d cur_fn=%d block=%d data=%s\n", data_ind->sapi, |
| 319 | data_ind->arfcn, data_ind->fn, current_fn, data_ind->block_nr, |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 320 | osmo_hexdump(data_ind->data, data_ind->len)); |
| 321 | |
Ivan Kluchnikov | e3a0596 | 2012-03-18 15:48:51 +0400 | [diff] [blame] | 322 | switch (data_ind->sapi) { |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 323 | case PCU_IF_SAPI_PDTCH: |
Pau Espin Pedrol | da971ee | 2020-12-16 15:59:45 +0100 | [diff] [blame] | 324 | pcu_l1_meas_set_rssi(&meas, data_ind->rssi); |
Max | b216c6b | 2017-09-01 11:00:39 +0200 | [diff] [blame] | 325 | /* convert BER to % value */ |
Pau Espin Pedrol | da971ee | 2020-12-16 15:59:45 +0100 | [diff] [blame] | 326 | pcu_l1_meas_set_ber(&meas, data_ind->ber10k / 100); |
| 327 | pcu_l1_meas_set_bto(&meas, data_ind->ta_offs_qbits); |
| 328 | pcu_l1_meas_set_link_qual(&meas, data_ind->lqual_cb / 10); |
Vadim Yanitskiy | f17dfc0 | 2019-07-09 16:16:35 +0700 | [diff] [blame] | 329 | |
Max | b216c6b | 2017-09-01 11:00:39 +0200 | [diff] [blame] | 330 | LOGP(DL1IF, LOGL_DEBUG, "Data indication with raw measurements received: BER10k = %d, BTO = %d, Q = %d\n", |
| 331 | data_ind->ber10k, data_ind->ta_offs_qbits, data_ind->lqual_cb); |
Vadim Yanitskiy | f17dfc0 | 2019-07-09 16:16:35 +0700 | [diff] [blame] | 332 | |
Pau Espin Pedrol | d1049dc | 2021-01-18 17:14:14 +0100 | [diff] [blame] | 333 | rc = pcu_rx_data_ind_pdtch(bts, data_ind->trx_nr, data_ind->ts_nr, |
Andreas Eversberg | 570b44b | 2013-03-16 16:15:01 +0100 | [diff] [blame] | 334 | data_ind->data, data_ind->len, data_ind->fn, |
Jacob Erlbeck | 20f6fd1 | 2015-06-08 11:05:45 +0200 | [diff] [blame] | 335 | &meas); |
Pau Espin Pedrol | 72e3956 | 2020-06-30 17:57:42 +0200 | [diff] [blame] | 336 | gsmtap_chantype = GSMTAP_CHANNEL_PDTCH; |
Ivan Kluchnikov | e3a0596 | 2012-03-18 15:48:51 +0400 | [diff] [blame] | 337 | break; |
Max | 84bf0fa | 2017-09-01 11:02:40 +0200 | [diff] [blame] | 338 | case PCU_IF_SAPI_BCCH: |
Pau Espin Pedrol | d1049dc | 2021-01-18 17:14:14 +0100 | [diff] [blame] | 339 | rc = pcu_rx_data_ind_bcch(bts, data_ind->data, data_ind->len); |
Pau Espin Pedrol | 72e3956 | 2020-06-30 17:57:42 +0200 | [diff] [blame] | 340 | gsmtap_chantype = GSMTAP_CHANNEL_BCCH; |
Max | 84bf0fa | 2017-09-01 11:02:40 +0200 | [diff] [blame] | 341 | break; |
Ivan Kluchnikov | e3a0596 | 2012-03-18 15:48:51 +0400 | [diff] [blame] | 342 | default: |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 343 | LOGP(DL1IF, LOGL_ERROR, "Received PCU data indication with " |
| 344 | "unsupported sapi %d\n", data_ind->sapi); |
| 345 | rc = -EINVAL; |
Pau Espin Pedrol | 72e3956 | 2020-06-30 17:57:42 +0200 | [diff] [blame] | 346 | gsmtap_chantype = GSMTAP_CHANNEL_UNKNOWN; |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 347 | } |
Ivan Kluchnikov | e3a0596 | 2012-03-18 15:48:51 +0400 | [diff] [blame] | 348 | |
Pau Espin Pedrol | ac3fd12 | 2021-01-13 18:54:38 +0100 | [diff] [blame] | 349 | if (rc < 0 && (the_pcu->gsmtap_categ_mask & (1 <<PCU_GSMTAP_C_UL_UNKNOWN))) { |
| 350 | gsmtap_send(the_pcu->gsmtap, data_ind->arfcn | GSMTAP_ARFCN_F_UPLINK, data_ind->ts_nr, |
Pau Espin Pedrol | 72e3956 | 2020-06-30 17:57:42 +0200 | [diff] [blame] | 351 | gsmtap_chantype, 0, data_ind->fn, meas.rssi, meas.link_qual, data_ind->data, data_ind->len); |
Harald Welte | 717cdf5 | 2017-07-21 21:56:23 +0200 | [diff] [blame] | 352 | } |
| 353 | |
Ivan Kluchnikov | e3a0596 | 2012-03-18 15:48:51 +0400 | [diff] [blame] | 354 | return rc; |
| 355 | } |
| 356 | |
Pau Espin Pedrol | d1049dc | 2021-01-18 17:14:14 +0100 | [diff] [blame] | 357 | static int pcu_rx_data_cnf(struct gprs_rlcmac_bts *bts, struct gsm_pcu_if_data *data_cnf) |
Andreas Eversberg | a9be154 | 2012-09-27 09:23:24 +0200 | [diff] [blame] | 358 | { |
| 359 | int rc = 0; |
Pau Espin Pedrol | d1049dc | 2021-01-18 17:14:14 +0100 | [diff] [blame] | 360 | int current_fn = bts_current_frame_number(bts); |
Andreas Eversberg | a9be154 | 2012-09-27 09:23:24 +0200 | [diff] [blame] | 361 | |
Philipp Maier | 7e8e397 | 2018-04-10 13:31:45 +0200 | [diff] [blame] | 362 | LOGP(DL1IF, LOGL_DEBUG, "Data confirm received: sapi=%d fn=%d cur_fn=%d\n", |
| 363 | data_cnf->sapi, data_cnf->fn, current_fn); |
Andreas Eversberg | a9be154 | 2012-09-27 09:23:24 +0200 | [diff] [blame] | 364 | |
| 365 | switch (data_cnf->sapi) { |
| 366 | case PCU_IF_SAPI_PCH: |
Andreas Eversberg | 8c3680d | 2012-10-08 12:30:56 +0200 | [diff] [blame] | 367 | if (data_cnf->data[2] == 0x3f) |
Pau Espin Pedrol | d1049dc | 2021-01-18 17:14:14 +0100 | [diff] [blame] | 368 | bts_rcv_imm_ass_cnf(bts, data_cnf->data, data_cnf->fn); |
Andreas Eversberg | a9be154 | 2012-09-27 09:23:24 +0200 | [diff] [blame] | 369 | break; |
| 370 | default: |
| 371 | LOGP(DL1IF, LOGL_ERROR, "Received PCU data confirm with " |
| 372 | "unsupported sapi %d\n", data_cnf->sapi); |
| 373 | rc = -EINVAL; |
| 374 | } |
| 375 | |
| 376 | return rc; |
| 377 | } |
| 378 | |
Andreas Eversberg | a23c7ee | 2012-12-18 10:47:28 +0100 | [diff] [blame] | 379 | // FIXME: remove this, when changed from c++ to c. |
Pau Espin Pedrol | d1049dc | 2021-01-18 17:14:14 +0100 | [diff] [blame] | 380 | int pcu_rx_rts_req_pdtch(struct gprs_rlcmac_bts *bts, uint8_t trx, uint8_t ts, |
Andreas Eversberg | a23c7ee | 2012-12-18 10:47:28 +0100 | [diff] [blame] | 381 | uint32_t fn, uint8_t block_nr) |
| 382 | { |
Pau Espin Pedrol | d1049dc | 2021-01-18 17:14:14 +0100 | [diff] [blame] | 383 | return gprs_rlcmac_rcv_rts_block(bts, |
Max | 878bd1f | 2016-07-20 13:05:05 +0200 | [diff] [blame] | 384 | trx, ts, fn, block_nr); |
Andreas Eversberg | a23c7ee | 2012-12-18 10:47:28 +0100 | [diff] [blame] | 385 | } |
Pau Espin Pedrol | d1049dc | 2021-01-18 17:14:14 +0100 | [diff] [blame] | 386 | int pcu_rx_rts_req_ptcch(struct gprs_rlcmac_bts *bts, uint8_t trx, uint8_t ts, |
Vadim Yanitskiy | 78f5861 | 2019-10-05 22:22:08 +0700 | [diff] [blame] | 387 | uint32_t fn, uint8_t block_nr) |
| 388 | { |
Vadim Yanitskiy | 78f5861 | 2019-10-05 22:22:08 +0700 | [diff] [blame] | 389 | struct gprs_rlcmac_pdch *pdch; |
| 390 | |
| 391 | /* Prevent buffer overflow */ |
| 392 | if (trx >= ARRAY_SIZE(bts->trx) || ts >= 8) |
| 393 | return -EINVAL; |
| 394 | |
| 395 | /* Make sure PDCH time-slot is enabled */ |
| 396 | pdch = &bts->trx[trx].pdch[ts]; |
| 397 | if (!pdch->m_is_enabled) |
| 398 | return -EAGAIN; |
| 399 | |
Pau Espin Pedrol | ac3fd12 | 2021-01-13 18:54:38 +0100 | [diff] [blame] | 400 | pcu_l1if_tx_ptcch(bts, trx, ts, bts->trx[trx].arfcn, fn, block_nr, |
Vadim Yanitskiy | 78f5861 | 2019-10-05 22:22:08 +0700 | [diff] [blame] | 401 | pdch->ptcch_msg, GSM_MACBLOCK_LEN); |
| 402 | return 0; |
| 403 | } |
Andreas Eversberg | a23c7ee | 2012-12-18 10:47:28 +0100 | [diff] [blame] | 404 | |
Pau Espin Pedrol | d1049dc | 2021-01-18 17:14:14 +0100 | [diff] [blame] | 405 | static int pcu_rx_rts_req(struct gprs_rlcmac_bts *bts, struct gsm_pcu_if_rts_req *rts_req) |
Ivan Kluchnikov | 5310d45 | 2012-04-17 22:00:31 +0400 | [diff] [blame] | 406 | { |
| 407 | int rc = 0; |
Pau Espin Pedrol | d1049dc | 2021-01-18 17:14:14 +0100 | [diff] [blame] | 408 | int current_fn = bts_current_frame_number(bts); |
Ivan Kluchnikov | 5310d45 | 2012-04-17 22:00:31 +0400 | [diff] [blame] | 409 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 410 | LOGP(DL1IF, LOGL_DEBUG, "RTS request received: trx=%d ts=%d sapi=%d " |
Philipp Maier | 7e8e397 | 2018-04-10 13:31:45 +0200 | [diff] [blame] | 411 | "arfcn=%d fn=%d cur_fn=%d block=%d\n", rts_req->trx_nr, rts_req->ts_nr, |
| 412 | rts_req->sapi, rts_req->arfcn, rts_req->fn, current_fn, rts_req->block_nr); |
Ivan Kluchnikov | e3a0596 | 2012-03-18 15:48:51 +0400 | [diff] [blame] | 413 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 414 | switch (rts_req->sapi) { |
| 415 | case PCU_IF_SAPI_PDTCH: |
Pau Espin Pedrol | d1049dc | 2021-01-18 17:14:14 +0100 | [diff] [blame] | 416 | pcu_rx_rts_req_pdtch(bts, rts_req->trx_nr, rts_req->ts_nr, |
Max | 878bd1f | 2016-07-20 13:05:05 +0200 | [diff] [blame] | 417 | rts_req->fn, rts_req->block_nr); |
Ivan Kluchnikov | e3a0596 | 2012-03-18 15:48:51 +0400 | [diff] [blame] | 418 | break; |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 419 | case PCU_IF_SAPI_PTCCH: |
Pau Espin Pedrol | d1049dc | 2021-01-18 17:14:14 +0100 | [diff] [blame] | 420 | pcu_rx_rts_req_ptcch(bts, rts_req->trx_nr, rts_req->ts_nr, |
Vadim Yanitskiy | 78f5861 | 2019-10-05 22:22:08 +0700 | [diff] [blame] | 421 | rts_req->fn, rts_req->block_nr); |
Ivan Kluchnikov | e3a0596 | 2012-03-18 15:48:51 +0400 | [diff] [blame] | 422 | break; |
| 423 | default: |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 424 | LOGP(DL1IF, LOGL_ERROR, "Received PCU RTS request with " |
| 425 | "unsupported sapi %d\n", rts_req->sapi); |
| 426 | rc = -EINVAL; |
| 427 | } |
| 428 | |
| 429 | return rc; |
| 430 | } |
| 431 | |
Vadim Yanitskiy | ffebd24 | 2019-10-05 23:45:31 +0700 | [diff] [blame] | 432 | /* C -> C++ adapter for direct DSP access code (e.g. osmo-bts-sysmo) */ |
Pau Espin Pedrol | d1049dc | 2021-01-18 17:14:14 +0100 | [diff] [blame] | 433 | extern "C" int pcu_rx_rach_ind_ptcch(struct gprs_rlcmac_bts *bts, uint8_t trx_nr, uint8_t ts_nr, uint32_t fn, int16_t qta) |
Vadim Yanitskiy | ffebd24 | 2019-10-05 23:45:31 +0700 | [diff] [blame] | 434 | { |
Vadim Yanitskiy | a0a0b7f | 2020-05-21 19:55:46 +0700 | [diff] [blame] | 435 | struct rach_ind_params rip = { |
| 436 | /* The content of RA is not of interest on PTCCH/U */ |
| 437 | .burst_type = GSM_L1_BURST_TYPE_ACCESS_0, |
| 438 | .is_11bit = false, |
| 439 | .ra = 0x00, |
| 440 | .trx_nr = trx_nr, |
| 441 | .ts_nr = ts_nr, |
| 442 | .rfn = fn, |
| 443 | .qta = qta, |
| 444 | }; |
| 445 | |
Pau Espin Pedrol | d1049dc | 2021-01-18 17:14:14 +0100 | [diff] [blame] | 446 | return bts_rcv_ptcch_rach(bts, &rip); |
Vadim Yanitskiy | ffebd24 | 2019-10-05 23:45:31 +0700 | [diff] [blame] | 447 | } |
| 448 | |
Pau Espin Pedrol | d1049dc | 2021-01-18 17:14:14 +0100 | [diff] [blame] | 449 | static int pcu_rx_rach_ind(struct gprs_rlcmac_bts *bts, const struct gsm_pcu_if_rach_ind *rach_ind) |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 450 | { |
| 451 | int rc = 0; |
Pau Espin Pedrol | d1049dc | 2021-01-18 17:14:14 +0100 | [diff] [blame] | 452 | int current_fn = bts_current_frame_number(bts); |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 453 | |
| 454 | LOGP(DL1IF, LOGL_INFO, "RACH request received: sapi=%d " |
Vadim Yanitskiy | b30f28f | 2020-03-29 19:01:58 +0700 | [diff] [blame] | 455 | "qta=%d, ra=0x%02x, fn=%u, cur_fn=%d, is_11bit=%d\n", rach_ind->sapi, rach_ind->qta, |
Philipp Maier | 7e8e397 | 2018-04-10 13:31:45 +0200 | [diff] [blame] | 456 | rach_ind->ra, rach_ind->fn, current_fn, rach_ind->is_11bit); |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 457 | |
Vadim Yanitskiy | a0a0b7f | 2020-05-21 19:55:46 +0700 | [diff] [blame] | 458 | struct rach_ind_params rip = { |
| 459 | .burst_type = (enum ph_burst_type) rach_ind->burst_type, |
| 460 | .is_11bit = rach_ind->is_11bit > 0, |
| 461 | .ra = rach_ind->ra, |
| 462 | .trx_nr = rach_ind->trx_nr, |
| 463 | .ts_nr = rach_ind->ts_nr, |
| 464 | .rfn = rach_ind->fn, |
| 465 | .qta = rach_ind->qta, |
| 466 | }; |
| 467 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 468 | switch (rach_ind->sapi) { |
| 469 | case PCU_IF_SAPI_RACH: |
Pau Espin Pedrol | d1049dc | 2021-01-18 17:14:14 +0100 | [diff] [blame] | 470 | rc = bts_rcv_rach(bts, &rip); |
Ivan Kluchnikov | e3a0596 | 2012-03-18 15:48:51 +0400 | [diff] [blame] | 471 | break; |
Vadim Yanitskiy | ffebd24 | 2019-10-05 23:45:31 +0700 | [diff] [blame] | 472 | case PCU_IF_SAPI_PTCCH: |
Pau Espin Pedrol | d1049dc | 2021-01-18 17:14:14 +0100 | [diff] [blame] | 473 | rc = bts_rcv_ptcch_rach(bts, &rip); |
Vadim Yanitskiy | ffebd24 | 2019-10-05 23:45:31 +0700 | [diff] [blame] | 474 | break; |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 475 | default: |
| 476 | LOGP(DL1IF, LOGL_ERROR, "Received PCU rach request with " |
| 477 | "unsupported sapi %d\n", rach_ind->sapi); |
| 478 | rc = -EINVAL; |
Ivan Kluchnikov | e3a0596 | 2012-03-18 15:48:51 +0400 | [diff] [blame] | 479 | } |
| 480 | |
Ivan Kluchnikov | e3a0596 | 2012-03-18 15:48:51 +0400 | [diff] [blame] | 481 | return rc; |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 482 | } |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 483 | |
Alexander Couzens | 5bece2a | 2020-10-12 02:27:22 +0200 | [diff] [blame] | 484 | static int pcu_info_ind_ns(struct gprs_rlcmac_bts *bts, |
| 485 | const struct gsm_pcu_if_info_ind *info_ind) |
| 486 | { |
| 487 | struct osmo_sockaddr remote[PCU_IF_NUM_NSVC] = { }; |
| 488 | struct osmo_sockaddr local[PCU_IF_NUM_NSVC] = { }; |
| 489 | uint16_t nsvci[PCU_IF_NUM_NSVC] = { }; |
| 490 | uint16_t valid = 0; |
| 491 | |
| 492 | for (unsigned int i = 0; i < PCU_IF_NUM_NSVC; i++) { |
| 493 | struct osmo_sockaddr_str sockstr; |
| 494 | |
| 495 | switch (info_ind->address_type[i]) { |
| 496 | case PCU_IF_ADDR_TYPE_IPV4: |
| 497 | local[i].u.sin.sin_family = AF_INET; |
| 498 | local[i].u.sin.sin_addr.s_addr = INADDR_ANY; |
| 499 | local[i].u.sin.sin_port = htons(info_ind->local_port[i]); |
| 500 | |
| 501 | remote[i].u.sin.sin_family = AF_INET; |
Alexander Couzens | 87c6dd3 | 2020-10-27 13:24:40 +0100 | [diff] [blame] | 502 | memcpy(&remote[i].u.sin.sin_addr, &info_ind->remote_ip[i].v4, |
| 503 | sizeof(struct in_addr)); |
Alexander Couzens | 5bece2a | 2020-10-12 02:27:22 +0200 | [diff] [blame] | 504 | remote[i].u.sin.sin_port = htons(info_ind->remote_port[i]); |
| 505 | break; |
| 506 | case PCU_IF_ADDR_TYPE_IPV6: |
| 507 | local[i].u.sin6.sin6_family = AF_INET6; |
| 508 | local[i].u.sin6.sin6_addr = in6addr_any; |
| 509 | local[i].u.sin6.sin6_port = htons(info_ind->local_port[i]); |
| 510 | |
| 511 | remote[i].u.sin6.sin6_family = AF_INET6; |
Alexander Couzens | 87c6dd3 | 2020-10-27 13:24:40 +0100 | [diff] [blame] | 512 | memcpy(&remote[i].u.sin6.sin6_addr, |
| 513 | &info_ind->remote_ip[i].v6, |
| 514 | sizeof(struct in6_addr)); |
Alexander Couzens | 5bece2a | 2020-10-12 02:27:22 +0200 | [diff] [blame] | 515 | remote[i].u.sin6.sin6_port = htons(info_ind->remote_port[i]); |
| 516 | break; |
| 517 | default: |
| 518 | continue; |
| 519 | } |
| 520 | nsvci[i] = info_ind->nsvci[i]; |
| 521 | |
| 522 | LOGP(DL1IF, LOGL_DEBUG, " NS%u nsvci=%u\n", i, nsvci[i]); |
| 523 | if (osmo_sockaddr_str_from_sockaddr(&sockstr, &remote[i].u.sas)) |
| 524 | strcpy(sockstr.ip, "invalid"); |
| 525 | |
| 526 | LOGP(DL1IF, LOGL_DEBUG, " NS%u address: r=%s:%u<->l=NULL:%u\n", |
| 527 | i, sockstr.ip, sockstr.port, info_ind->local_port[i]); |
| 528 | |
| 529 | valid |= 1 << i; |
| 530 | } |
| 531 | |
| 532 | if (valid == 0) { |
| 533 | LOGP(DL1IF, LOGL_ERROR, "No NSVC available to connect to the SGSN!\n"); |
| 534 | return -EINVAL; |
| 535 | } |
| 536 | |
| 537 | return gprs_ns_config(bts, info_ind->nsei, local, remote, nsvci, valid); |
| 538 | } |
| 539 | |
Pau Espin Pedrol | d1049dc | 2021-01-18 17:14:14 +0100 | [diff] [blame] | 540 | static int pcu_rx_info_ind(struct gprs_rlcmac_bts *bts, const struct gsm_pcu_if_info_ind *info_ind) |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 541 | { |
Holger Hans Peter Freyther | e8d9a5f | 2013-07-28 19:11:20 +0200 | [diff] [blame] | 542 | struct gprs_bssgp_pcu *pcu; |
Harald Welte | bb47d95 | 2016-11-17 18:40:02 +0100 | [diff] [blame] | 543 | int rc = 0; |
Vadim Yanitskiy | 11b0f00 | 2020-07-24 01:24:47 +0700 | [diff] [blame] | 544 | unsigned int trx_nr, ts_nr; |
Pau Espin Pedrol | d87722d | 2020-10-30 17:14:26 +0100 | [diff] [blame] | 545 | unsigned int i; |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 546 | |
Andreas Eversberg | 8389fd0 | 2012-07-18 10:06:48 +0200 | [diff] [blame] | 547 | if (info_ind->version != PCU_IF_VERSION) { |
Vadim Yanitskiy | fad2128 | 2020-07-19 02:05:33 +0700 | [diff] [blame] | 548 | fprintf(stderr, "PCU interface version number of BTS (%u) is " |
| 549 | "different (%u).\nPlease re-compile!\n", |
Andreas Eversberg | 8389fd0 | 2012-07-18 10:06:48 +0200 | [diff] [blame] | 550 | info_ind->version, PCU_IF_VERSION); |
| 551 | exit(-1); |
| 552 | } |
| 553 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 554 | LOGP(DL1IF, LOGL_DEBUG, "Info indication received:\n"); |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 555 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 556 | if (!(info_ind->flags & PCU_IF_FLAG_ACTIVE)) { |
| 557 | LOGP(DL1IF, LOGL_NOTICE, "BTS not available\n"); |
Stefan Sperling | 5b22fb7 | 2018-02-14 19:46:33 +0100 | [diff] [blame] | 558 | if (!bts->active) |
| 559 | return -EAGAIN; |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 560 | bssgp_failed: |
Stefan Sperling | 5b22fb7 | 2018-02-14 19:46:33 +0100 | [diff] [blame] | 561 | bts->active = false; |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 562 | /* free all TBF */ |
Vadim Yanitskiy | 11b0f00 | 2020-07-24 01:24:47 +0700 | [diff] [blame] | 563 | for (trx_nr = 0; trx_nr < ARRAY_SIZE(bts->trx); trx_nr++) { |
| 564 | bts->trx[trx_nr].arfcn = info_ind->trx[trx_nr].arfcn; |
| 565 | for (ts_nr = 0; ts_nr < ARRAY_SIZE(bts->trx[0].pdch); ts_nr++) |
| 566 | bts->trx[trx_nr].pdch[ts_nr].free_resources(); |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 567 | } |
Alexander Couzens | 290d903 | 2020-09-16 21:52:02 +0200 | [diff] [blame] | 568 | gprs_bssgp_destroy(bts); |
Daniel Willmann | 6d8884d | 2014-06-04 18:30:59 +0200 | [diff] [blame] | 569 | exit(0); |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 570 | } |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 571 | LOGP(DL1IF, LOGL_INFO, "BTS available\n"); |
Neels Hofmeyr | bdc55fa | 2018-02-21 00:39:07 +0100 | [diff] [blame] | 572 | LOGP(DL1IF, LOGL_DEBUG, " mcc=%03u\n", info_ind->mcc); |
| 573 | LOGP(DL1IF, LOGL_DEBUG, " mnc=%0*u\n", info_ind->mnc_3_digits, info_ind->mnc); |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 574 | LOGP(DL1IF, LOGL_DEBUG, " lac=%d\n", info_ind->lac); |
| 575 | LOGP(DL1IF, LOGL_DEBUG, " rac=%d\n", info_ind->rac); |
Harald Welte | 1473b37 | 2019-03-21 19:48:55 +0100 | [diff] [blame] | 576 | LOGP(DL1IF, LOGL_DEBUG, " cell_id=%d\n", info_ind->cell_id); |
Andreas Eversberg | a23c7ee | 2012-12-18 10:47:28 +0100 | [diff] [blame] | 577 | LOGP(DL1IF, LOGL_DEBUG, " bsic=%d\n", info_ind->bsic); |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 578 | LOGP(DL1IF, LOGL_DEBUG, " nsei=%d\n", info_ind->nsei); |
| 579 | LOGP(DL1IF, LOGL_DEBUG, " nse_timer=%d %d %d %d %d %d %d\n", |
| 580 | info_ind->nse_timer[0], info_ind->nse_timer[1], |
| 581 | info_ind->nse_timer[2], info_ind->nse_timer[3], |
| 582 | info_ind->nse_timer[4], info_ind->nse_timer[5], |
| 583 | info_ind->nse_timer[6]); |
| 584 | LOGP(DL1IF, LOGL_DEBUG, " cell_timer=%d %d %d %d %d %d %d %d %d %d " |
| 585 | "%d\n", |
| 586 | info_ind->cell_timer[0], info_ind->cell_timer[1], |
| 587 | info_ind->cell_timer[2], info_ind->cell_timer[3], |
| 588 | info_ind->cell_timer[4], info_ind->cell_timer[5], |
| 589 | info_ind->cell_timer[6], info_ind->cell_timer[7], |
| 590 | info_ind->cell_timer[8], info_ind->cell_timer[9], |
| 591 | info_ind->cell_timer[10]); |
| 592 | LOGP(DL1IF, LOGL_DEBUG, " repeat_time=%d\n", info_ind->repeat_time); |
| 593 | LOGP(DL1IF, LOGL_DEBUG, " repeat_count=%d\n", info_ind->repeat_count); |
| 594 | LOGP(DL1IF, LOGL_DEBUG, " bvci=%d\n", info_ind->bvci); |
| 595 | LOGP(DL1IF, LOGL_DEBUG, " t3142=%d\n", info_ind->t3142); |
| 596 | LOGP(DL1IF, LOGL_DEBUG, " t3169=%d\n", info_ind->t3169); |
| 597 | LOGP(DL1IF, LOGL_DEBUG, " t3191=%d\n", info_ind->t3191); |
| 598 | LOGP(DL1IF, LOGL_DEBUG, " t3193=%d (ms)\n", info_ind->t3193_10ms * 10); |
| 599 | LOGP(DL1IF, LOGL_DEBUG, " t3195=%d\n", info_ind->t3195); |
| 600 | LOGP(DL1IF, LOGL_DEBUG, " n3101=%d\n", info_ind->n3101); |
| 601 | LOGP(DL1IF, LOGL_DEBUG, " n3103=%d\n", info_ind->n3103); |
| 602 | LOGP(DL1IF, LOGL_DEBUG, " n3105=%d\n", info_ind->n3105); |
| 603 | LOGP(DL1IF, LOGL_DEBUG, " cv_countdown=%d\n", info_ind->cv_countdown); |
| 604 | LOGP(DL1IF, LOGL_DEBUG, " dl_tbf_ext=%d\n", info_ind->dl_tbf_ext); |
| 605 | LOGP(DL1IF, LOGL_DEBUG, " ul_tbf_ext=%d\n", info_ind->ul_tbf_ext); |
Pau Espin Pedrol | 2e6b60d | 2021-01-20 13:48:31 +0100 | [diff] [blame] | 606 | bts->cgi_ps.rai.lac.plmn.mcc = info_ind->mcc; |
| 607 | bts->cgi_ps.rai.lac.plmn.mnc = info_ind->mnc; |
| 608 | bts->cgi_ps.rai.lac.plmn.mnc_3_digits = info_ind->mnc_3_digits; |
| 609 | bts->cgi_ps.rai.lac.lac = info_ind->lac; |
| 610 | bts->cgi_ps.rai.rac = info_ind->rac; |
| 611 | bts->cgi_ps.cell_identity = info_ind->cell_id; |
Andreas Eversberg | a23c7ee | 2012-12-18 10:47:28 +0100 | [diff] [blame] | 612 | bts->bsic = info_ind->bsic; |
Pau Espin Pedrol | d87722d | 2020-10-30 17:14:26 +0100 | [diff] [blame] | 613 | |
| 614 | bts->cs_mask = 1 << 0; /* We need at least 1 CS, let's enable CS1 */ |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 615 | for (i = 0; i < 4; i++) { |
Pau Espin Pedrol | d87722d | 2020-10-30 17:14:26 +0100 | [diff] [blame] | 616 | uint8_t allowed = !!(info_ind->flags & (PCU_IF_FLAG_CS1 << i)); |
| 617 | bts->cs_mask |= allowed << i; |
| 618 | if (allowed) |
| 619 | LOGP(DL1IF, LOGL_DEBUG, " Use CS%d\n", i + 1); |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 620 | } |
Pau Espin Pedrol | ac3fd12 | 2021-01-13 18:54:38 +0100 | [diff] [blame] | 621 | bts_recalc_max_cs(bts); |
Pau Espin Pedrol | d87722d | 2020-10-30 17:14:26 +0100 | [diff] [blame] | 622 | |
| 623 | bts->mcs_mask = 0; |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 624 | for (i = 0; i < 9; i++) { |
Pau Espin Pedrol | d87722d | 2020-10-30 17:14:26 +0100 | [diff] [blame] | 625 | uint8_t allowed = !!(info_ind->flags & (PCU_IF_FLAG_MCS1 << i)); |
| 626 | bts->mcs_mask |= allowed << i; |
Pau Espin Pedrol | 87eec1f | 2020-10-30 18:46:24 +0100 | [diff] [blame] | 627 | if (allowed) |
Pau Espin Pedrol | d87722d | 2020-10-30 17:14:26 +0100 | [diff] [blame] | 628 | LOGP(DL1IF, LOGL_DEBUG, " Use MCS%d\n", i + 1); |
Pau Espin Pedrol | 87eec1f | 2020-10-30 18:46:24 +0100 | [diff] [blame] | 629 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 630 | } |
Pau Espin Pedrol | ac3fd12 | 2021-01-13 18:54:38 +0100 | [diff] [blame] | 631 | bts_recalc_max_mcs(bts); |
Pau Espin Pedrol | d87722d | 2020-10-30 17:14:26 +0100 | [diff] [blame] | 632 | |
Pau Espin Pedrol | b47b137 | 2020-11-03 15:59:39 +0100 | [diff] [blame] | 633 | LOGP(DL1IF, LOGL_DEBUG, " initial_cs=%u%s\n", info_ind->initial_cs, |
Pau Espin Pedrol | ac3fd12 | 2021-01-13 18:54:38 +0100 | [diff] [blame] | 634 | the_pcu->vty.force_initial_cs ? " (VTY forced, ignoring)" : ""); |
Pau Espin Pedrol | 793583e | 2021-01-14 16:20:57 +0100 | [diff] [blame] | 635 | bts->pcuif_info_ind.initial_cs = info_ind->initial_cs; |
| 636 | bts_recalc_initial_cs(bts); |
Pau Espin Pedrol | b47b137 | 2020-11-03 15:59:39 +0100 | [diff] [blame] | 637 | |
| 638 | LOGP(DL1IF, LOGL_DEBUG, " initial_mcs=%u%s\n", info_ind->initial_mcs, |
Pau Espin Pedrol | ac3fd12 | 2021-01-13 18:54:38 +0100 | [diff] [blame] | 639 | the_pcu->vty.force_initial_mcs ? " (VTY forced, ignoring)" : ""); |
Pau Espin Pedrol | 793583e | 2021-01-14 16:20:57 +0100 | [diff] [blame] | 640 | bts->pcuif_info_ind.initial_mcs = info_ind->initial_mcs; |
| 641 | bts_recalc_initial_mcs(bts); |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 642 | |
Alexander Couzens | 290d903 | 2020-09-16 21:52:02 +0200 | [diff] [blame] | 643 | pcu = gprs_bssgp_init( |
| 644 | bts, |
| 645 | info_ind->nsei, info_ind->bvci, |
| 646 | info_ind->mcc, info_ind->mnc, info_ind->mnc_3_digits, |
| 647 | info_ind->lac, info_ind->rac, info_ind->cell_id); |
| 648 | if (!pcu) { |
Vadim Yanitskiy | c1a726c | 2020-10-08 22:46:26 +0700 | [diff] [blame] | 649 | LOGP(DL1IF, LOGL_ERROR, "Failed to init BSSGP\n"); |
Alexander Couzens | 9b5c960 | 2020-07-28 13:47:18 +0200 | [diff] [blame] | 650 | goto bssgp_failed; |
| 651 | } |
| 652 | |
Alexander Couzens | 5bece2a | 2020-10-12 02:27:22 +0200 | [diff] [blame] | 653 | rc = pcu_info_ind_ns(pcu->bts, info_ind); |
| 654 | if (rc < 0) { |
Alexander Couzens | 290d903 | 2020-09-16 21:52:02 +0200 | [diff] [blame] | 655 | LOGP(DL1IF, LOGL_ERROR, "No NSVC available to connect to the SGSN!\n"); |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 656 | goto bssgp_failed; |
| 657 | } |
| 658 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 659 | if (info_ind->t3142) { /* if timer values are set */ |
Pau Espin Pedrol | 28f160e | 2019-09-05 14:48:35 +0200 | [diff] [blame] | 660 | osmo_tdef_set(bts->T_defs_bts, 3142, info_ind->t3142, OSMO_TDEF_S); |
| 661 | osmo_tdef_set(bts->T_defs_bts, 3169, info_ind->t3169, OSMO_TDEF_S); |
| 662 | osmo_tdef_set(bts->T_defs_bts, 3191, info_ind->t3191, OSMO_TDEF_S); |
| 663 | osmo_tdef_set(bts->T_defs_bts, 3193, info_ind->t3193_10ms * 10, OSMO_TDEF_MS); |
| 664 | osmo_tdef_set(bts->T_defs_bts, 3195, info_ind->t3195, OSMO_TDEF_S); |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 665 | bts->n3101 = info_ind->n3101; |
| 666 | bts->n3103 = info_ind->n3103; |
| 667 | bts->n3105 = info_ind->n3105; |
| 668 | } |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 669 | |
Vadim Yanitskiy | 11b0f00 | 2020-07-24 01:24:47 +0700 | [diff] [blame] | 670 | for (trx_nr = 0; trx_nr < ARRAY_SIZE(bts->trx); trx_nr++) { |
| 671 | bts->trx[trx_nr].arfcn = info_ind->trx[trx_nr].arfcn; |
Andreas Eversberg | a23c7ee | 2012-12-18 10:47:28 +0100 | [diff] [blame] | 672 | if ((info_ind->flags & PCU_IF_FLAG_SYSMO) |
Vadim Yanitskiy | 11b0f00 | 2020-07-24 01:24:47 +0700 | [diff] [blame] | 673 | && info_ind->trx[trx_nr].hlayer1) { |
Max | cad867e | 2016-04-21 14:35:55 +0200 | [diff] [blame] | 674 | #ifdef ENABLE_DIRECT_PHY |
Vadim Yanitskiy | 11b0f00 | 2020-07-24 01:24:47 +0700 | [diff] [blame] | 675 | LOGP(DL1IF, LOGL_DEBUG, " TRX %d hlayer1=%x\n", trx_nr, |
| 676 | info_ind->trx[trx_nr].hlayer1); |
| 677 | if (!bts->trx[trx_nr].fl1h) |
| 678 | bts->trx[trx_nr].fl1h = l1if_open_pdch( |
| 679 | trx_nr, |
| 680 | info_ind->trx[trx_nr].hlayer1, |
Pau Espin Pedrol | ac3fd12 | 2021-01-13 18:54:38 +0100 | [diff] [blame] | 681 | the_pcu->gsmtap); |
Vadim Yanitskiy | 11b0f00 | 2020-07-24 01:24:47 +0700 | [diff] [blame] | 682 | if (!bts->trx[trx_nr].fl1h) { |
Andreas Eversberg | a23c7ee | 2012-12-18 10:47:28 +0100 | [diff] [blame] | 683 | LOGP(DL1IF, LOGL_FATAL, "Failed to open direct " |
| 684 | "DSP access for PDCH.\n"); |
| 685 | exit(0); |
| 686 | } |
| 687 | #else |
| 688 | LOGP(DL1IF, LOGL_FATAL, "Compiled without direct DSP " |
| 689 | "access for PDCH, but enabled at " |
| 690 | "BTS. Please deactivate it!\n"); |
| 691 | exit(0); |
| 692 | #endif |
Andreas Eversberg | a23c7ee | 2012-12-18 10:47:28 +0100 | [diff] [blame] | 693 | } |
| 694 | |
Vadim Yanitskiy | 11b0f00 | 2020-07-24 01:24:47 +0700 | [diff] [blame] | 695 | for (ts_nr = 0; ts_nr < ARRAY_SIZE(bts->trx[0].pdch); ts_nr++) { |
Vadim Yanitskiy | 8e2bd1e | 2020-07-21 00:54:42 +0700 | [diff] [blame] | 696 | const struct gsm_pcu_if_info_ts *its = &info_ind->trx[trx_nr].ts[ts_nr]; |
Vadim Yanitskiy | 0f41b71 | 2020-07-24 01:28:13 +0700 | [diff] [blame] | 697 | struct gprs_rlcmac_pdch *pdch = &bts->trx[trx_nr].pdch[ts_nr]; |
Vadim Yanitskiy | 11b0f00 | 2020-07-24 01:24:47 +0700 | [diff] [blame] | 698 | if ((info_ind->trx[trx_nr].pdch_mask & (1 << ts_nr))) { |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 699 | /* FIXME: activate dynamically at RLCMAC */ |
Holger Hans Peter Freyther | 17b0d83 | 2013-10-19 17:37:48 +0200 | [diff] [blame] | 700 | if (!pdch->is_enabled()) { |
Max | cad867e | 2016-04-21 14:35:55 +0200 | [diff] [blame] | 701 | #ifdef ENABLE_DIRECT_PHY |
Andreas Eversberg | a23c7ee | 2012-12-18 10:47:28 +0100 | [diff] [blame] | 702 | if ((info_ind->flags & |
| 703 | PCU_IF_FLAG_SYSMO)) |
| 704 | l1if_connect_pdch( |
Vadim Yanitskiy | 11b0f00 | 2020-07-24 01:24:47 +0700 | [diff] [blame] | 705 | bts->trx[trx_nr].fl1h, ts_nr); |
Andreas Eversberg | a23c7ee | 2012-12-18 10:47:28 +0100 | [diff] [blame] | 706 | #endif |
Pau Espin Pedrol | d1049dc | 2021-01-18 17:14:14 +0100 | [diff] [blame] | 707 | pcu_tx_act_req(bts, trx_nr, ts_nr, 1); |
Holger Hans Peter Freyther | 17b0d83 | 2013-10-19 17:37:48 +0200 | [diff] [blame] | 708 | pdch->enable(); |
Andreas Eversberg | 3b7461c | 2012-07-20 11:19:59 +0200 | [diff] [blame] | 709 | } |
Vadim Yanitskiy | 8e2bd1e | 2020-07-21 00:54:42 +0700 | [diff] [blame] | 710 | |
| 711 | pdch->tsc = its->tsc; |
| 712 | |
| 713 | /* (Optional) frequency hopping parameters */ |
| 714 | if (its->h) { |
| 715 | pdch->fh.enabled = true; |
| 716 | pdch->fh.maio = its->maio; |
| 717 | pdch->fh.hsn = its->hsn; |
| 718 | |
| 719 | OSMO_ASSERT(its->ma_bit_len <= sizeof(pdch->fh.ma) * 8); |
| 720 | pdch->fh.ma_oct_len = OSMO_BYTES_FOR_BITS(its->ma_bit_len); |
| 721 | pdch->fh.ma_bit_len = its->ma_bit_len; |
| 722 | |
| 723 | /* Mobile Allocation + padding (byte/bit order as on the wire): |
| 724 | * | 00 00 00 00 00 cc bb aa | -> | cc bb aa 00 00 00 00 00 | */ |
| 725 | unsigned int offset = sizeof(pdch->fh.ma) - pdch->fh.ma_oct_len; |
| 726 | memcpy(pdch->fh.ma, its->ma + offset, pdch->fh.ma_oct_len); |
| 727 | } |
| 728 | |
| 729 | LOGP(DL1IF, LOGL_INFO, "PDCH (trx=%u, ts=%u): tsc=%u, hopping=%s\n", |
| 730 | trx_nr, ts_nr, pdch->tsc, pdch->fh.enabled ? "yes" : "no"); |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 731 | } else { |
Holger Hans Peter Freyther | 17b0d83 | 2013-10-19 17:37:48 +0200 | [diff] [blame] | 732 | if (pdch->is_enabled()) { |
Pau Espin Pedrol | d1049dc | 2021-01-18 17:14:14 +0100 | [diff] [blame] | 733 | pcu_tx_act_req(bts, trx_nr, ts_nr, 0); |
Holger Hans Peter Freyther | 09ef27a | 2013-10-20 16:37:05 +0200 | [diff] [blame] | 734 | pdch->free_resources(); |
Holger Hans Peter Freyther | 17b0d83 | 2013-10-19 17:37:48 +0200 | [diff] [blame] | 735 | pdch->disable(); |
Andreas Eversberg | 3b7461c | 2012-07-20 11:19:59 +0200 | [diff] [blame] | 736 | } |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 737 | } |
| 738 | } |
| 739 | } |
| 740 | |
Stefan Sperling | 5b22fb7 | 2018-02-14 19:46:33 +0100 | [diff] [blame] | 741 | bts->active = true; |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 742 | return rc; |
| 743 | } |
| 744 | |
Pau Espin Pedrol | d1049dc | 2021-01-18 17:14:14 +0100 | [diff] [blame] | 745 | static int pcu_rx_time_ind(struct gprs_rlcmac_bts *bts, struct gsm_pcu_if_time_ind *time_ind) |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 746 | { |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 747 | uint8_t fn13 = time_ind->fn % 13; |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 748 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 749 | /* omit frame numbers not starting at a MAC block */ |
| 750 | if (fn13 != 0 && fn13 != 4 && fn13 != 8) |
| 751 | return 0; |
Max | 3741f14 | 2017-06-26 12:10:12 +0200 | [diff] [blame] | 752 | |
| 753 | LOGP(DL1IF, LOGL_DEBUG, "Time indication received: %d\n", time_ind->fn % 52); |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 754 | |
Pau Espin Pedrol | d1049dc | 2021-01-18 17:14:14 +0100 | [diff] [blame] | 755 | bts_set_current_frame_number(bts, time_ind->fn); |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 756 | return 0; |
| 757 | } |
| 758 | |
Pau Espin Pedrol | d1049dc | 2021-01-18 17:14:14 +0100 | [diff] [blame] | 759 | static int pcu_rx_pag_req(struct gprs_rlcmac_bts *bts, struct gsm_pcu_if_pag_req *pag_req) |
Andreas Eversberg | 2b91464 | 2012-07-19 13:06:26 +0200 | [diff] [blame] | 760 | { |
Neels Hofmeyr | 59fc0bd | 2020-08-21 16:21:23 +0200 | [diff] [blame] | 761 | struct osmo_mobile_identity mi; |
| 762 | int rc; |
| 763 | |
Andreas Eversberg | 2b91464 | 2012-07-19 13:06:26 +0200 | [diff] [blame] | 764 | LOGP(DL1IF, LOGL_DEBUG, "Paging request received: chan_needed=%d " |
| 765 | "length=%d\n", pag_req->chan_needed, pag_req->identity_lv[0]); |
| 766 | |
Pau Espin Pedrol | 32499b6 | 2019-12-09 13:55:12 +0100 | [diff] [blame] | 767 | /* check if identity does not fit: length > sizeof(lv) - 1 */ |
| 768 | if (pag_req->identity_lv[0] >= sizeof(pag_req->identity_lv)) { |
| 769 | LOGP(DL1IF, LOGL_ERROR, "Paging identity too large (%" PRIu8 ")\n", |
| 770 | pag_req->identity_lv[0]); |
| 771 | return -EINVAL; |
| 772 | } |
| 773 | |
Neels Hofmeyr | 59fc0bd | 2020-08-21 16:21:23 +0200 | [diff] [blame] | 774 | rc = osmo_mobile_identity_decode(&mi, &pag_req->identity_lv[1], pag_req->identity_lv[0], true); |
| 775 | if (rc < 0) { |
| 776 | LOGP(DL1IF, LOGL_ERROR, "Failed to decode Mobile Identity in Paging Request (rc=%d)\n", rc); |
| 777 | return -EINVAL; |
| 778 | } |
| 779 | |
Pau Espin Pedrol | d1049dc | 2021-01-18 17:14:14 +0100 | [diff] [blame] | 780 | return bts_add_paging(bts, pag_req->chan_needed, &mi); |
Andreas Eversberg | 2b91464 | 2012-07-19 13:06:26 +0200 | [diff] [blame] | 781 | } |
| 782 | |
Pau Espin Pedrol | d1049dc | 2021-01-18 17:14:14 +0100 | [diff] [blame] | 783 | static int pcu_rx_susp_req(struct gprs_rlcmac_bts *bts, struct gsm_pcu_if_susp_req *susp_req) |
Harald Welte | 3447c4a | 2017-07-11 00:06:38 +0200 | [diff] [blame] | 784 | { |
Pau Espin Pedrol | db5e339 | 2021-01-21 18:02:40 +0100 | [diff] [blame] | 785 | struct bssgp_bvc_ctx *bctx = bts->pcu->bssgp.bctx; |
Pau Espin Pedrol | bd9973a | 2020-09-22 15:57:37 +0200 | [diff] [blame] | 786 | GprsMs *ms; |
| 787 | struct gprs_rlcmac_dl_tbf *dl_tbf; |
| 788 | struct gprs_rlcmac_ul_tbf *ul_tbf; |
Harald Welte | 3447c4a | 2017-07-11 00:06:38 +0200 | [diff] [blame] | 789 | struct gprs_ra_id ra_id; |
| 790 | |
| 791 | gsm48_parse_ra(&ra_id, susp_req->ra_id); |
| 792 | |
| 793 | LOGP(DL1IF, LOGL_INFO, "GPRS Suspend request received: TLLI=0x%08x RAI=%s\n", |
| 794 | susp_req->tlli, osmo_rai_name(&ra_id)); |
| 795 | |
Pau Espin Pedrol | 2182e62 | 2021-01-14 16:48:38 +0100 | [diff] [blame] | 796 | if ((ms = bts_ms_store(bts)->get_ms(susp_req->tlli))) { |
Pau Espin Pedrol | bd9973a | 2020-09-22 15:57:37 +0200 | [diff] [blame] | 797 | /* We need to catch both pointers here since MS may become freed |
| 798 | after first tbf_free(dl_tbf) if only DL TBF was available */ |
Pau Espin Pedrol | da971ee | 2020-12-16 15:59:45 +0100 | [diff] [blame] | 799 | dl_tbf = ms_dl_tbf(ms); |
| 800 | ul_tbf = ms_ul_tbf(ms); |
Pau Espin Pedrol | bd9973a | 2020-09-22 15:57:37 +0200 | [diff] [blame] | 801 | if (dl_tbf) |
| 802 | tbf_free(dl_tbf); |
| 803 | if (ul_tbf) |
| 804 | tbf_free(ul_tbf); |
| 805 | } |
| 806 | |
Harald Welte | 3447c4a | 2017-07-11 00:06:38 +0200 | [diff] [blame] | 807 | if (!bctx) |
| 808 | return -1; |
| 809 | |
| 810 | return bssgp_tx_suspend(bctx->nsei, susp_req->tlli, &ra_id); |
| 811 | } |
| 812 | |
Pau Espin Pedrol | d1049dc | 2021-01-18 17:14:14 +0100 | [diff] [blame] | 813 | static int pcu_rx_app_info_req(struct gprs_rlcmac_bts *bts, struct gsm_pcu_if_app_info_req *app_info_req) |
Oliver Smith | cfb6321 | 2019-09-05 17:13:33 +0200 | [diff] [blame] | 814 | { |
Pau Espin Pedrol | 54faf02 | 2021-01-14 12:12:43 +0100 | [diff] [blame] | 815 | struct llist_head *tmp; |
Oliver Smith | cfb6321 | 2019-09-05 17:13:33 +0200 | [diff] [blame] | 816 | |
| 817 | LOGP(DL1IF, LOGL_DEBUG, "Application Information Request received: type=0x%08x len=%i\n", |
| 818 | app_info_req->application_type, app_info_req->len); |
| 819 | |
Pau Espin Pedrol | 0ece97d | 2021-01-18 12:53:54 +0100 | [diff] [blame] | 820 | bts->app_info_pending = 0; |
Pau Espin Pedrol | 2182e62 | 2021-01-14 16:48:38 +0100 | [diff] [blame] | 821 | llist_for_each(tmp, bts_ms_store(bts)->ms_list()) { |
Pau Espin Pedrol | 54faf02 | 2021-01-14 12:12:43 +0100 | [diff] [blame] | 822 | GprsMs *ms = llist_entry(tmp, typeof(*ms), list); |
Pau Espin Pedrol | da971ee | 2020-12-16 15:59:45 +0100 | [diff] [blame] | 823 | if (!ms_dl_tbf(ms)) |
Oliver Smith | cfb6321 | 2019-09-05 17:13:33 +0200 | [diff] [blame] | 824 | continue; |
Pau Espin Pedrol | 0ece97d | 2021-01-18 12:53:54 +0100 | [diff] [blame] | 825 | bts->app_info_pending++; |
Oliver Smith | cfb6321 | 2019-09-05 17:13:33 +0200 | [diff] [blame] | 826 | ms->app_info_pending = true; |
| 827 | } |
| 828 | |
Pau Espin Pedrol | 0ece97d | 2021-01-18 12:53:54 +0100 | [diff] [blame] | 829 | if (!bts->app_info_pending) { |
Oliver Smith | cfb6321 | 2019-09-05 17:13:33 +0200 | [diff] [blame] | 830 | LOGP(DL1IF, LOGL_NOTICE, "Packet Application Information will not be sent, no subscribers with active" |
| 831 | " TBF\n"); |
| 832 | return -1; |
| 833 | } |
| 834 | |
Pau Espin Pedrol | 0ece97d | 2021-01-18 12:53:54 +0100 | [diff] [blame] | 835 | if (bts->app_info) { |
Oliver Smith | cfb6321 | 2019-09-05 17:13:33 +0200 | [diff] [blame] | 836 | LOGP(DL1IF, LOGL_NOTICE, "Previous Packet Application Information was not sent to all subscribers," |
| 837 | " overwriting with new one\n"); |
Pau Espin Pedrol | 0ece97d | 2021-01-18 12:53:54 +0100 | [diff] [blame] | 838 | msgb_free(bts->app_info); |
Oliver Smith | cfb6321 | 2019-09-05 17:13:33 +0200 | [diff] [blame] | 839 | } |
| 840 | |
| 841 | LOGP(DL1IF, LOGL_INFO, "Sending Packet Application Information to %i subscribers with active TBF\n", |
Pau Espin Pedrol | 0ece97d | 2021-01-18 12:53:54 +0100 | [diff] [blame] | 842 | bts->app_info_pending); |
| 843 | bts->app_info = gprs_rlcmac_app_info_msg(app_info_req); |
Oliver Smith | cfb6321 | 2019-09-05 17:13:33 +0200 | [diff] [blame] | 844 | return 0; |
| 845 | } |
| 846 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 847 | int pcu_rx(uint8_t msg_type, struct gsm_pcu_if *pcu_prim) |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 848 | { |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 849 | int rc = 0; |
Pau Espin Pedrol | d1049dc | 2021-01-18 17:14:14 +0100 | [diff] [blame] | 850 | struct gprs_rlcmac_bts *bts = gprs_pcu_get_bts_by_nr(the_pcu, pcu_prim->bts_nr); |
| 851 | if (!bts) { |
| 852 | LOGP(DL1IF, LOGL_NOTICE, "Received message for new BTS%d\n", pcu_prim->bts_nr); |
| 853 | bts = bts_alloc(the_pcu, pcu_prim->bts_nr); |
| 854 | if (!bts) { |
| 855 | LOGP(DL1IF, LOGL_ERROR, "Failed to create object for BTS%d!\n", pcu_prim->bts_nr); |
| 856 | return -EAGAIN; |
| 857 | } |
| 858 | } |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 859 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 860 | switch (msg_type) { |
| 861 | case PCU_IF_MSG_DATA_IND: |
Pau Espin Pedrol | d1049dc | 2021-01-18 17:14:14 +0100 | [diff] [blame] | 862 | rc = pcu_rx_data_ind(bts, &pcu_prim->u.data_ind); |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 863 | break; |
Andreas Eversberg | a9be154 | 2012-09-27 09:23:24 +0200 | [diff] [blame] | 864 | case PCU_IF_MSG_DATA_CNF: |
Pau Espin Pedrol | d1049dc | 2021-01-18 17:14:14 +0100 | [diff] [blame] | 865 | rc = pcu_rx_data_cnf(bts, &pcu_prim->u.data_cnf); |
Andreas Eversberg | a9be154 | 2012-09-27 09:23:24 +0200 | [diff] [blame] | 866 | break; |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 867 | case PCU_IF_MSG_RTS_REQ: |
Pau Espin Pedrol | d1049dc | 2021-01-18 17:14:14 +0100 | [diff] [blame] | 868 | rc = pcu_rx_rts_req(bts, &pcu_prim->u.rts_req); |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 869 | break; |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 870 | case PCU_IF_MSG_RACH_IND: |
Pau Espin Pedrol | d1049dc | 2021-01-18 17:14:14 +0100 | [diff] [blame] | 871 | rc = pcu_rx_rach_ind(bts, &pcu_prim->u.rach_ind); |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 872 | break; |
| 873 | case PCU_IF_MSG_INFO_IND: |
Pau Espin Pedrol | d1049dc | 2021-01-18 17:14:14 +0100 | [diff] [blame] | 874 | rc = pcu_rx_info_ind(bts, &pcu_prim->u.info_ind); |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 875 | break; |
| 876 | case PCU_IF_MSG_TIME_IND: |
Pau Espin Pedrol | d1049dc | 2021-01-18 17:14:14 +0100 | [diff] [blame] | 877 | rc = pcu_rx_time_ind(bts, &pcu_prim->u.time_ind); |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 878 | break; |
Andreas Eversberg | 2b91464 | 2012-07-19 13:06:26 +0200 | [diff] [blame] | 879 | case PCU_IF_MSG_PAG_REQ: |
Pau Espin Pedrol | d1049dc | 2021-01-18 17:14:14 +0100 | [diff] [blame] | 880 | rc = pcu_rx_pag_req(bts, &pcu_prim->u.pag_req); |
Andreas Eversberg | 2b91464 | 2012-07-19 13:06:26 +0200 | [diff] [blame] | 881 | break; |
Harald Welte | 3447c4a | 2017-07-11 00:06:38 +0200 | [diff] [blame] | 882 | case PCU_IF_MSG_SUSP_REQ: |
Pau Espin Pedrol | d1049dc | 2021-01-18 17:14:14 +0100 | [diff] [blame] | 883 | rc = pcu_rx_susp_req(bts, &pcu_prim->u.susp_req); |
Harald Welte | 3447c4a | 2017-07-11 00:06:38 +0200 | [diff] [blame] | 884 | break; |
Oliver Smith | cfb6321 | 2019-09-05 17:13:33 +0200 | [diff] [blame] | 885 | case PCU_IF_MSG_APP_INFO_REQ: |
Pau Espin Pedrol | d1049dc | 2021-01-18 17:14:14 +0100 | [diff] [blame] | 886 | rc = pcu_rx_app_info_req(bts, &pcu_prim->u.app_info_req); |
Oliver Smith | cfb6321 | 2019-09-05 17:13:33 +0200 | [diff] [blame] | 887 | break; |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 888 | default: |
Thorsten Alteholz | 8bb7904 | 2018-10-06 10:42:58 +0200 | [diff] [blame] | 889 | LOGP(DL1IF, LOGL_ERROR, "Received unknown PCU msg type %d\n", |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 890 | msg_type); |
| 891 | rc = -EINVAL; |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 892 | } |
Philipp Maier | 8ccf704 | 2018-04-10 13:12:42 +0200 | [diff] [blame] | 893 | |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 894 | return rc; |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 895 | } |